[Whirlwind]/[Tenai's Wind] can be good choices for 1 or 2 extra knockdowns.
[Djinn's Haste] is a good choice if you need to run past stuff.
[Stoneflesh aura] if the enemy can kill you through Magnetic Aura.
[Aura of Restoration] if you need some healing.
[Inferno]/[Flame Burst] for additional damage.

When you stop the meele mob, cast MoM and magnetic aura. Run in, when they start being approaching start casting Bed of Coals, it should start the moment they reach you. When you finish casting it, use glyph and throw Meteor Shower.
While they are knocked down use aftershock and any other spell you brought. If someone survived throw the first spell that recharges. A good target could be the trolls in the cave outside Droknars Forge.